A women has conceived and implanatation has occurred. Discuss the sequence of changes up to parturition which will take place with in her body under the influence of hormones.

Which hormone is secreted in a woman if pregnancy has occured ?

Identify the colour changes in pH paper when a drop of a sample, which has pH 14 in standard pH colour chart is placed on it.

In a potato race a bucket is placed at the starting point, which is 5 m from the first potato, and the other potatoes are placed 3 m apart in a straight line. There are ten potatoes in the line (see Fig.) Each competitor starts from the bucket, picks up the nearest potato, runs back with it, drops it in the bucket, runs back to pick up the next potato, runsto the bucket to drop it in, and the continues in the same way until all the potatoes are in the bucket. What is the total distance the competitor has to run ?

In a potato race, a bucket is placed at the starting point, which is 5 m from the first potato, and the other potatoes are placed 3 m apart I a straight line. There are ten potatoes in the line (see Fig 5.6). A competitorstarts from the bucket, picks up the nearest potato, runs hack with it. drops it in the bucket runs back to pick up the next potato, runs in the bucket to drop it in, and she continues in the same way until all the potatoes are in the bucket. What is the total distance the competitor has to run?

In a potato race, a bucket is placed at the starting point, which is 5m from the first potato and the other potatoes are placed 3m apart in a straight line. These are ten potatoes in the line. (see fig) Each competitor starts from the bucket, picks up the nearest potato, runs back with it, dorps it in the bucket, runs back to pick up the next potato, runs to the bucket to drop it in and she continues in the same way until all the potatoes are in the bucket. What is the total distance the competitor has to run?

A girl riding a bicycle along a straight road with a speed of 5 ms^-1 throws a stone of mass 0.5 kg which has a speed of 15 ms^-1 with respect to the ground along her direction of motion. The mass of the girl and bicyle is 50 kg. Does the speed of the bicycle change after the stone is thrown? What is the change in speed, if so?

Read the following passage and answer the questions. Adsorption is surface phenomenon and its differ from absorption, Which occurs throughout the body of the substance which abosorbs. In physisorption, the attractive forces are mainly van der waals forces while in chemisorption actual bonding occuars between the particles of absorbent and absorbate. Generelly, easily liquifying gases are absorved more easily on the surface of a solid as compared to the gases which are liquified with difficulty. Adsorption increases with the increase in pressure and decreases as the temparature is increased. Out of physisorption and chemisorption which has more enthalpy of adsorption ?

A sweet seller has 420 kaju baths and 130 badam barfis. She wants to stack them in such a way that each stack has the same number and they take up the least area of the tray. What is the number that can be placed in each stack for this purpose ?

Juhi wants to buy a bicycle. She goes to the market and finds that the bicycle she likes is available for ₹1800. Juhi has ₹ 600 with her. So, she tells the shopkeeper that she would not be able to buy it. The shopkeeper, after a bit of calculation, makes the following offer. He tells Juhi that she could take the bicycle by making a payment of ₹600 cash down and the remaining money could be made in two monthly instalments of ₹610 each. Juhi has two options one is to go for instalment scheme or to make cash payment by taking loan from a bank which is available at the rale of 10% per annum simple interest. Which option is more economical to her?

An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target .Based on this informaion, fill up the gaps in the following statements using the following terms. Muscular,contact,non -contact,gravity, friction,shape, attraction The type of force responsible for a change in the state of motion of the arrow is an example of a............. force .